Fix ride model technical specs

Implement plan to fix ride model technical specifications pipeline. This includes creating a new migration for the `ride_model_submission_technical_specifications` table, updating `entitySubmissionHelpers.ts` to handle insertion of technical specifications, and modifying the edge function `process-selective-approval/index.ts` to fetch these specifications. This ensures no data loss for ride model technical specifications.

src/integrations/supabase/types.ts

@@ -3413,6 +3413,47 @@ export type Database = {
           },
         ]
       }
+      ride_model_submission_technical_specifications: {
+        Row: {
+          category: string | null
+          created_at: string | null
+          display_order: number | null
+          id: string
+          ride_model_submission_id: string
+          spec_name: string
+          spec_unit: string | null
+          spec_value: string
+        }
+        Insert: {
+          category?: string | null
+          created_at?: string | null
+          display_order?: number | null
+          id?: string
+          ride_model_submission_id: string
+          spec_name: string
+          spec_unit?: string | null
+          spec_value: string
+        }
+        Update: {
+          category?: string | null
+          created_at?: string | null
+          display_order?: number | null
+          id?: string
+          ride_model_submission_id?: string
+          spec_name?: string
+          spec_unit?: string | null
+          spec_value?: string
+        }
+        Relationships: [
+          {
+            foreignKeyName: "fk_ride_model_submission"
+            columns: ["ride_model_submission_id"]
+            isOneToOne: false
+            referencedRelation: "ride_model_submissions"
+            referencedColumns: ["id"]
+          },
+        ]
+      }
       ride_model_submissions: {
         Row: {
           banner_image_id: string | null